Xiao Ni c7925cc21f md/raid6: Set R5_ReadError when there is read failure on parity disk ... commit 143f6e733b73051cd22dcb80951c6c929da413ce upstream. 7471fb77ce4d ("md/raid6: Fix anomily when recovering a single device in RAID6.") avoids rereading P when it can be computed from other members. However, this misses the chance to re-write the right data to P. This patch sets R5_ReadError if the re-read fails. Also, when re-read is skipped, we also missed the chance to reset rdev->read_errors to 0. It can fail the disk when there are many read errors on P member disk (other disks don't have read error) V2: upper layer read request don't read parity/Q data. So there is no need to consider such situation. This is Reported-by: kbuild test robot <lkp@intel.com> Fixes: 7471fb77ce4d ("md/raid6: Fix anomily when recovering a single device in RAID6.") Cc: <stable@vger.kernel.org> #4.4+ Signed-off-by: Xiao Ni <xni@redhat.com> Signed-off-by: Song Liu <songliubraving@fb.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-10-05 12:27:54 +02:00
..
bcache	bcache: check c->gc_thread by IS_ERR_OR_NULL in cache_set_flush()	2019-08-04 09:34:48 +02:00
persistent-data	dm space map metadata: fix missing store of apply_bops() return value	2019-09-06 10:18:10 +02:00
bitmap.c	md/bitmap: disable bitmap_resize for file-backed bitmaps.	2017-09-27 11:00:14 +02:00
bitmap.h	md-cluster: Use a small window for resync	2015-10-12 01:32:05 -05:00
dm-bio-prison.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
dm-bio-prison.h
dm-bio-record.h
dm-bufio.c	Revert "dm bufio: fix deadlock with loop device"	2019-09-06 10:18:09 +02:00
dm-bufio.h
dm-builtin.c
dm-cache-block-types.h
dm-cache-metadata.c	dm cache metadata: save in-core policy_hint_size to on-disk superblock	2018-09-09 20:04:33 +02:00
dm-cache-metadata.h	dm cache: make sure every metadata function checks fail_io	2016-04-12 09:08:40 -07:00
dm-cache-policy-cleaner.c	- Revert a dm-multipath change that caused a regression for unprivledged	2015-11-04 21:19:53 -08:00
dm-cache-policy-internal.h
dm-cache-policy-mq.c	dm: convert ffs to __ffs	2015-10-31 19:06:01 -04:00
dm-cache-policy-smq.c	dm: convert ffs to __ffs	2015-10-31 19:06:01 -04:00
dm-cache-policy.c
dm-cache-policy.h
dm-cache-target.c	dm cache: fix resize crash if user doesn't reload cache table	2018-10-13 09:11:32 +02:00
dm-crypt.c	dm crypt: mark key as invalid until properly loaded	2017-01-06 11:16:15 +01:00
dm-delay.c	dm delay: fix a crash when invalid device is specified	2019-06-11 12:23:48 +02:00
dm-era-target.c	dm era: save spacemap metadata root after the pre-commit	2017-05-20 14:27:00 +02:00
dm-exception-store.c	- Revert a dm-multipath change that caused a regression for unprivledged	2015-11-04 21:19:53 -08:00
dm-exception-store.h	dm snapshot: fix hung bios when copy error occurs	2016-03-03 15:07:14 -08:00
dm-flakey.c	dm flakey: return -EINVAL on interval bounds error in flakey_ctr()	2017-01-06 11:16:15 +01:00
dm-io.c	dm io: fix duplicate bio completion due to missing ref count	2018-03-11 16:19:47 +01:00
dm-ioctl.c	dm ioctl: harden copy_params()'s copy_from_user() from malicious users	2018-11-21 09:27:36 +01:00
dm-kcopyd.c	dm kcopyd: Fix bug causing workqueue stalls	2019-01-26 09:42:54 +01:00
dm-linear.c	dm linear: remove redundant target name from error messages	2015-10-31 19:06:03 -04:00
dm-log-userspace-base.c	dm: drop NULL test before kmem_cache_destroy() and mempool_destroy()	2015-10-31 19:06:00 -04:00
dm-log-userspace-transfer.c
dm-log-userspace-transfer.h
dm-log-writes.c	dm log writes: fix bug with too large bios	2016-10-07 15:23:47 +02:00
dm-log.c
dm-mpath.c	dm mpath: check if path's request_queue is dying in activate_path()	2016-10-28 03:01:28 -04:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-queue-length.c
dm-raid.c	dm raid: fix round up of default region size	2015-10-02 12:02:31 -04:00
dm-raid1.c	dm mirror: fix read error on recovery after default leg failure	2016-11-10 16:36:35 +01:00
dm-region-hash.c	dm: convert ffs to __ffs	2015-10-31 19:06:01 -04:00
dm-round-robin.c
dm-service-time.c
dm-snap-persistent.c	dm snapshot: fix hung bios when copy error occurs	2016-03-03 15:07:14 -08:00
dm-snap-transient.c	dm snapshot: fix hung bios when copy error occurs	2016-03-03 15:07:14 -08:00
dm-snap.c	dm snapshot: Fix excessive memory usage and workqueue stalls	2019-01-26 09:42:54 +01:00
dm-stats.c	dm stats: fix a leaked s->histogram_boundaries array	2017-03-12 06:37:26 +01:00
dm-stats.h
dm-stripe.c	Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm	2015-09-02 16:35:26 -07:00
dm-switch.c	dm switch: simplify conditional in alloc_region_table()	2015-10-31 19:06:06 -04:00
dm-sysfs.c
dm-table.c	dm table: fix invalid memory accesses with too high sector number	2019-09-06 10:18:11 +02:00
dm-target.c
dm-thin-metadata.c	dm thin metadata: fix __udivdi3 undefined on 32-bit	2018-10-10 08:52:13 +02:00
dm-thin-metadata.h
dm-thin.c	dm thin: add sanity checks to thin-pool and external snapshot creation	2019-04-27 09:33:49 +02:00
dm-uevent.c
dm-uevent.h
dm-verity.c	dm verity: use message limit for data block corruption message	2019-07-21 09:07:14 +02:00
dm-zero.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
dm.c	dm: correctly handle chained bios in dec_pending()	2018-02-22 15:45:01 +01:00
dm.h	block: kill merge_bvec_fn() completely	2015-08-13 12:31:57 -06:00
faulty.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
Kconfig	dm raid: select the Kconfig option CONFIG_MD_RAID0	2017-05-25 14:30:07 +02:00
linear.c	md/linear: shutup lockdep warnning	2017-10-21 17:09:05 +02:00
linear.h	md linear: fix a race between linear_add() and linear_congested()	2017-03-12 06:37:30 +01:00
Makefile	raid5: add basic stripe log	2015-10-24 17:16:19 +11:00
md-cluster.c	md-cluster: clear another node's suspend_area after the copy is finished	2018-10-10 08:52:04 +02:00
md-cluster.h	md-cluster: Fix adding of new disk with new reload code	2015-10-12 03:35:30 -05:00
md.c	md: don't set In_sync if array is frozen	2019-10-05 12:27:47 +02:00
md.h	md/raid: only permit hot-add of compatible integrity profiles	2016-02-17 12:30:57 -08:00
multipath.c	md: multipath: don't hardcopy bio in .make_request path	2016-04-12 09:08:57 -07:00
multipath.h
raid0.c	md/raid0: apply base queue limits *before* disk_stack_limits	2015-10-02 17:23:44 +10:00
raid0.h	block: kill merge_bvec_fn() completely	2015-08-13 12:31:57 -06:00
raid1.c	md/raid1: fail run raid1 array when active disk less than one	2019-10-05 12:27:49 +02:00
raid1.h	md-cluster: Use a small window for resync	2015-10-12 01:32:05 -05:00
raid5-cache.c	raid5-cache: start raid5 readonly if journal is missing	2015-11-01 13:48:29 +11:00
raid5.c	md/raid6: Set R5_ReadError when there is read failure on parity disk	2019-10-05 12:27:54 +02:00
raid5.h	RAID5: revert e9e4c377e2 to fix a livelock	2016-04-12 09:08:57 -07:00
raid10.c	md: Fix failed allocation of md_register_thread	2019-03-23 08:44:39 +01:00
raid10.h	md/raid10: ensure device failure recorded before write request returns.	2015-08-31 19:43:45 +02:00